R3 block info

B3422w5 said
Those Hughes rockers are what by friend used in his dyno competition build..376 inch 360 with Victor heads.
He was very happy with the rockers, and is a big supporter of cyro treatment... i know he would see that motor..just sitting in his shop
376 cid Mopar Engine

AUSA66 said
Yes they are the Cryo version not sure on the longevity of them haven't go any hours on them yet i am sure there are guys on here that are very familiar with the various R3 blocks .

Thanks for the replies.
We all know how people/companies trying to sell products and services will describe their items in the best way possible, but IF what Hughes says is true, I can't imagine using any other rocker arm on my Bill Mitchell Products "new" design RB big bore aluminum block. 4.50 bore X 4.35 stroke for 541 cu in displacement, street/strip use, lots of street and highway miles anticipated. Power goal is the widest, flattest 700 ft lbs of torque possible.